Carbureter.



L. SLIGER.

GARBURBTER.

APPLICATION FILED MAY 31, 1911.

1,042,982, 1 Patented 001 29, 1912.

2 SHEETS-SHEET 1.

WITNESSES INVENTOR H, 7,00% [60/462705 Wigw- WWW I Z 72 44442 54 I]ATTORNEYS L. SLIGER.

GARBURETER.

APPLICATION FILED MAYSI, 1911.

1,042,982, Patented Oct. 29, 1912.

2 SHEETS-$111131 2.

WITNESSES I/VVENTUR ATTORNEYS efficient arrangement for controlling thebelow it is a carbonchamber 7, as hereinafter described citizen of theUnited States,

LEONARD SLIGER, QFINDIANAPOLIS, INDIANA.

cnmsunnrna.

To all whom it may concern:

Be it known that I, LEONARD SLIGER, a and a resident of Indianapolis, 1nthe county of Marion and State of Indiana, have invented a new anduseful Carbureter, of which the following is a full, clear, and exactdescription.

My invention relates to carbureters, and more particularly tocarbureters embodying atomizers and employed in connection withinternalcombustion engmes. 7

Among the particular objects sought to be accomplished by my improvedcarbureter are the following :I. To more thoroughly atomize thehydrocarbon liquid; II. To maintain the hydro-carbon spray as near aspracticable centrally in relation to the atomizing chamber through whichit is forced to {the engine throttle; III. To heat the atomizing chamberby aid of waste gases from the engine; IV. To adapt the carbureter foruse in connection with a variable inlet or damper; V. To enable most ofthe essential parts to be removed and replaced when worn out; VI. Toprovide a new and needle valve in atomizing; and V11. To

provide an adjustable float so positioned. .within the apparatus as toafford peculiar advantages.

Reference is to be had to the accompanying drawings forming a part ofthis specification in which like characters of reference indicatecorresponding parts in all the views, and in which- Figure -1 is asection on the line 1-1 of Fig. 2 looking in the direction of the arrow,and showing the improved throttle and atomizing chamber; Fig. 2 is asection on the line 22 of Fig. 1, looking in the direction of the arrow;Fig. 3 is a plan view of the carbureter complete; Fig. 4 is a detailshowing, in section, the throttle; and Fig. 5 is a detail showing theform of the inlet valve. A heating 0 amber is shown at 6, andsubstantially hemispherical hollow member 7 used as a hydro-carbonchamber.

At 8 is a receptacle for holding hydrocarbon and supplying the same tothe hydro- A tubular member 9 extends diametrically through the heatingchamber 6, and'is designated as an atomizing chamber. Connected with oneend of this atdmizing chamber is an inlet 10. A throttle casing 1 1: iscon- Speciflcation of Letters Patent.

Application filed May 31, 1911. Serial in. 630,337.

' 12 leading to Patented Oct. 29,1912;

, REISSUED nected with the other end of the atomizing chamber a d isalso connected with a pipe the engine. At 13 is aneedle valve.

tom, is provided with an annular bead 14:, and fitted into thehydro-carbon chamber at this point is a screw plug 15. A needle 16 is.provided with a threaded portion 17 whlch extends through the screw plug15, the latter being threadedinternally for this purpose. A toothedWheel 17 is mounted rigidly upon the needle 16, and is employedforturning the same. A packing gland 16 is fitted upon the threadedportion of the needle 16 and is used to prevent leak from chamber 7. Athumb piece 18 is mounted rigidly upon the needle 16 and is employed forturning the latter-by hand. A lever 19 is pivoted upon the needle 16 asa center, and is provided with a spring plunger 20 for engaging thesurface of the toothed wheel 17. The spring plunger 20 is normallyactuated by a spring 21 but may be moved by handfor the purpose ofbringing it into'and out of wheel.

engagement with this The hydro-carbon chamber 7, at its hot:

A nozzle 22 is threaded externally and is provided'with an end portion23'. The nozzle 22 is also provided with a flange --24 for rendering itfluid-tight relatively to the atomizing chamber 9. The heating chamber 6'is slightly convexed, as indicated in Figs. 1 and. 2. This cover isprovided with a nipple 26 which is connected with the engine, and isfurther'provided with a nipple 27 to be connected with the exhaust ofthe engine. The gases of combustion and hot air from the engine escapethrough the nipple 26' into the heating chamber 6, and thence outthrough the nipp16 27 to the exhaust; I-n doing'this, the gases and hotair very effectively heat the atomizing chamber 9.

' A artition 6 separates the hydro-carbon cham er 7 from the heatingchamber 6, and the atomizing chamber 9 is integral with this partition,as will be understood from rtion 28 having" generally the form of a ome,and mounted within this portion is a ball float 29. A rod'30 extendsdownwardly from this float and is connected with a valve lever 31. Thislever is also connected with a valve stem 32 which operates a valve 33.

provided with a cover '25;

Fig. 2. The partition 6 is provided with a" A hand lever 34 is connectedwith he valve stem 32. By operating the hand lever 34, the valve 33 isopened and-closed so as to control the supply of liquid hydro-carbonfrom the receptacle 8 into the chamber 7. A valve sleeve 36- is threadedexternally, and adjustably mounted'within one end of the atomizingchamber 9, the latter being threaded internally for this purpose. Avalve seat 37 'having'generally an annular form is adjustably mountedwithin the valve sleeve 36. For this purpose the valve sleeve isthreaded internally and the valve seat 37 is threaded externally. Thevalve sleeve 36 is further provided with lugs 38 extending inwardly andslightly hooked, as will be understood from Fig.- 1. Engaging thesehooks is a spiral spring 39. A valve member having generally the form ofa fun ml, is shaped so as .to mate the adj acent sub face of the valveseat 37. The valve member 40 is provided with an extending portion 41,the axis of which is substantially 1n alinementwith the end portion 23of the against its seat. I

The throttle casing 11 is provided with a narrow passage 42 and disposedwithin the latter are two blades 43, 44 provided respectively withcurved edges 45, 46. These curved edges normally cross each other, asindicated in Fig. 4, so that the space he- I tween these edges may bevaried by shifting blades 43,- 44

the relative positions of the blades; The are slidably mounted withinthe passage 42, the blade 43 being carried -upon a stem 47 and the blade44 being mounted upon a stem 48. A lever 49 is mounted upon a pivot 50.and is pivotally connected to the stems 47, 48, as will be understoodfrom Fig. 4, so that when the lever49 is shifted slightly in acdunterclockwise direction, according to'this figure, the openingbetween the edges 45, 46 is re-- duced, whereas a slight movement of theis:

ver49 in a clockwise direction causes the. '1- openmg to becomeenlarged. ,Pivotally connected with." the lever 49 is a pitman 51, the.

latter being connectedatitslower end to a bell crank lever52l This bellcranklever mounted upon a bracket 53, and

a slot '55. The lever 19 (see Fig. l) carries a small roller 56 whichextends through the slot 55. The lever 49 is provided at its outer orfree end with an eye 57 by aid whereof it may be connected with anappropriate part controllable by the governor. The supply ofhydro-carbon within the hydro-carbon chamber 7 is shown at 58 (see Figs.1

and 2) iand the spray due to atomizing is shown $159 in Fig. 1.

The operation of my device is as follows: The parts being arranged asabove described, the plunger 20 is disengaged from the wheel 17 and byaid of the thumb piece 18 the needle 16- is turned until it is soadjusted relatively to the nozzle 26 as to enable this nozzle todischarge into the atomizing chamber 9 a suitable quantity of thehydro-carbon 58. The engine being now started up, a partial vacuum iscreated in the pipe 12, and as a consequence, air ,is drawn in throughthe air inlet 10. This air is, by virtueof the shape of the valve member40,

concentrated in the form of a stream flowing centrally through theatomizing chamher 9, the portion 23 ofthc nozzle 22 extending to theapproximate center of'this stream. The hydro-carbon is thus atomized,being broken up into an exceedingly fine spray and thoroughly mixed withthe incoming air. If, for any reason, the en gine happens to produce anundue suction in the atomizing chamber 9-, the valve member 40 isdislodged slightly and the spring 39 compressed accordin ly, so that thevalve member 40 moves slig tly to the left, according'to Fig. 1. Thevalve member 40 bein thus disengaged from the annular seat 37, t e airrushes around the outside of the valve member 40, as well as throu h itscenter. The air supply is thus great y increased. A

In order to increase or diminish the quantity of the hydro-carbon liquidthus being atomized, the wheel 17 is turned by hand so as to displacethe point of the needle 16 to a'greater or lesser extent relatively tothe inside of the portion 23 .of the nozzle 22. Whenever the lever 49(see Fig. 4) is turned in a counter-clockwise direction, that is,whenever the eye 57 is depressed, the blades 43, 44 of the throttle areshifted relatively to each other as above described, so as to curtailthe opening presented by the throttle. This, however, is not all thatoccurs inthis connection; The pitman 51 being depressed, the bell cranklever 52 is rocked slightly in a. counter-clockwise direction accordingto Fig. 4, the result being that the lever '19. is'turned slightly inrelatign to the general position of the hydrocarbon chamber 7, and'inbeing thus turned, causes a partial turning of the needle 16. Thepartial rotation of this needle, by virtue of the blades 17, causes theneedle to partially close the opening of the nozzle 23 and thus curtailthe quantity of hydro-carbon being formed into the spray 59. Thereduction in the quantity of hydro-carbon being atomized, and thereduction in the quantity of carbureted air being drawn through thethrottle, take place at the same time; hence, the reduction in thevolume of combustible mixture supplied to the engine tends to maintainat all times a degree of richness Which is substantially constant; thatis to say, when air is passing freely through the atomizing chamber, thehydro-carbon liquid is also being supplied in the atomizing chamber, andwhen the air supply is re stricted the hydro-carbon supply is likewiserestricted. In case, however, of an excessive vacuum being formed in theatomizing chamber, the supply of air is increased slightly owing to thedislodgment of the valve member 40, as above described, the net resultbeing that While the quantity of a1r passing through is greater thanusual.

the air is slightly poorer in hydro-carbon with which it is permeated.

u 2 Having thus described my invention, what.

I claim as new and desire to secure by Letters Patent is 1. In acarbureter, the combination of a hydro-carbon chamber, anatomizingchamber having generally the form of a tube and extending diametricallyacross said hydrocarbon chamber, a throttle, a nozzle extending fromsaid hydro-carbon chamber into sald atomizing chamber, a mechanismcoacting with said throttle and with said nozzle for maintaining arelation between the quantity of hydro-carbon flowing from said nozzleand the quantity of explosive mixture flowing through said throttle, andmeans for normally admitting and confining a current of airto theproximate center of said atomizing chamber and past the mouth of saidnozzle, said'means being automatically adjustable to vary the supply ofair in accordance with the volume of explosive mixture flowing throughsaid throttle.

2. In a carbureter, the combination of a hydro-carbon chamber, anatomizing chamher having generally theform of a tube and extendingacross said hydro-carbon chamber, a heating chamber disposed adjacent tosaid hydro-carbon chamber and said at-- omizing chamber, a nozzleextending from said hydro-carbon chamber into said atomizing chamber, athrottle, a "mechanism coacting with said throttle} and including meansto vary the flow of hydro-carbon through said nozzle, a, movable airfunnel within said atomizing tube, a member. wlthin said tube andagainst which the base-of said funnel is normally adapted to seat in.order to, cause the current of air delivered by the outflow of mixturepast the nozzle' to be confined to the proximate center of the atomizingtube, and means'for holding said air funnel against its seat, adapted topermit of its.movement away from the seat in order to vary the amount ofair admitted when suction,'caused through the throttle, increases.

3. In a carbureter, the combination of an atomizing chamber, an airinlet for supplying air thereinto, a valve for controlling the flow ofliquid hydrocarbon into said atomizing chamber, said valve having amovable needle, a toothed wheel secured upon said needle, a lever'havingconnection with said needle and movable relatively to said wheel, amember carried by said lever and normally engaging .said wheel, saidmember being detachable from said wheel to enable said wheel and theneedle to be independently adjusted, a throttle, and mechanism connectedwith said throttle and with said lever for the. purpose of maintainingthe throttle and lever in a predetermined rocking relation.

4. In a carbureter, the combination of a hydrocarbon chamber havinggenerally a hemispherical form, a heating chamber disposed adjacent tosaid hydro-carbon cham ber, an atomizing chamber having the form of atube and extending in the general direction of its length between saidhydro-carbon chamber and said heating chamber, a nozzle extending fromsaid hydro-carbon chamber and transversely into said atomizing chamher,and automatically adjustable means for admitting variable quantities ofair into said atomizing chamber and for causing'said air to form astream flowing axially of the chamber and past said nozzle in order toatomize the hydro-carbon from the latter into said'atomizi-ng chamber.

5. In a carbureter, the combination of an atomizing chamber havinggenerally a tubular form, a nozzle extending radially into saidatomizing chamber for the purpose of discharging hydro-carbon liquidtheremto, a valve seat mounted within said atomizing chamber and havingits axis. substantially in alinement with the end of said nozzle, avalve having. generally a tubular form and detachably engaging saidvalve seat, and a spring for' normally forcing the same against itsseat.

In testimony whereof I have signed my the presence of 7 name .to' thisspecification in two subscriblng witnesses.

Witnesses: I,

SAMUEL S, RHODES, DAvms'M. GREENE.

LEONARD stress,

